Kwiga kuri flame-retardancy kuzamura PA66 na fosifore itukura yashizwemo ibisigazwa bitandukanye

Nylon 66 ifite imiterere yubukanishi, kwambara no kurwanya ruswa, kandi ikoreshwa cyane mumashanyarazi, ibikoresho bya elegitoroniki n'amashanyarazi. Nyamara, PA66 ni ibintu byaka, kandi hazabaho igitonyanga mugihe cyo gutwika, gifite umutekano muke. Kubwibyo, ni ngombwa cyane kwiga flame retardant modification ya PA66. Sisitemu ya retardant ya PA66 yahoze yiganjemo abirinda flame retardants, ariko abirinda flame barinze bahuye nibibazo bikomeye byo kurengera ibidukikije na CTI.

Kugeza ubu, fosifore itukura ya flame retardant irashobora gukoreshwa kubikoresho bya flame retardant PA66 bitewe nubushobozi buke bwa flame retardant kandi ikora neza. Nyamara, fosifore yumutuku utinda mubushyuhe bwinshi, ikirere, ubuhehere bwinshi nibidukikije bya alkaline, byoroshye gufata amazi, bikaviramo aside aside. Acide ya fosifori izonona ibyuma, bikavamo amashanyarazi yibicuruzwa.

Mu rwego rwo gukumira aside irike ya fosifore itukura, kunoza ituze rya fosifore itukura, kugeza ubu inzira nziza cyane ni ugukora microcapsule yometse kuri fosifore itukura, ubu buryo bukoreshwa na polymerisiyasi, mu ifu ya fosifore itukura kugeza kuri kora ibikoresho bya polymer bihamye, kugirango ubashe guhura na fosifore itukura na ogisijeni namazi, kandi bigabanya aside irike ya fosifore itukura, byongera imbaraga zo gukoresha ibikoresho.

Nyamara, ibishishwa bitandukanye bigira ingaruka zitandukanye kuri fosifore itukura flame retardant ikomeza nylon. Muri ubu bushakashatsi, hatoranijwe ibintu bibiri bitukura bya fosifore yumuriro bisize hamwe na resin ya fenolike na melamine resin byatoranijwe kugirango bige ku ngaruka z’ibi bintu bibiri bitandukanye bitwikiriye flame retardants ku miterere itandukanye ya flame retardant yazamuye ibikoresho bya PA66.

Ibigize shingiro byibikoresho nibi bikurikira: melamine resin yatwikiriwe na fosifore yumutuku utukura (MC450), fenolike resin yatwikiriwe na fosifore itukura yibikoresho byingenzi (PF450): fosifore itukura ya 50%. Gukora flame retardant ishimangirwa nylon 66 ni 58% nylon 66, 12% flame retardant ibikoresho byingenzi, 30% fibre yibirahure.

Ipfunyitse itukura ya fosifore flame retardant yazamuye urupapuro rwa PA66

Nyuma yo kuvanga no guhindura, hateguwe PA66 / GF30 ikozwe hamwe na fosifore yumutuku utukura, hanyuma imitungo ijyanye nayo yapimwe kuburyo bukurikira.

1. Kubura umuriro, ubushyuhe bwinsinga zishyushye hamwe nibimenyetso byerekana ibimenyetso

Birashobora kugaragara ko byombi PA66-1 # na PA66-2 # bishobora kugera kumuriro wa retardant ya 1.6mm V-0, kandi ibikoresho ntibitonyanga mugihe cyo gutwikwa. Ubwoko bubiri bwa fosifori itukura ya flame retardant yongerewe PA66 ifite ingaruka nziza zo gucana. Indangantego ya glow-wire (GWFI) ya PA66-1 # na PA66-2 # irashobora kugera kuri 960 and, naho GWIT ikagera kuri 775 ℃. Imikorere ihagaritse gutwika hamwe na glow-wire igeragezwa ryibikoresho bibiri bitwikiriwe na fosifore yumuriro utukura birashobora kugera kurwego rwiza cyane.

Birashobora kandi kugaragara ko PA66-1 iri hejuru gato ya CTI ya # PA66-2 #, naho CTI yibikoresho bibiri bitukura bya fosifori bitwikiriye flame retardant PA66 iri hejuru ya 450V, ishobora kuzuza ibisabwa mubikorwa byinganda nyinshi.

2. Umutungo wa mashini

Ibikoresho bya mashini nibyingenzi byingenzi bya flame retardant ikomezwa nylon kugirango ikoreshwe.

Birashobora kugaragara ko imbaraga zingana nimbaraga za PA66-1 # ziri hejuru, zikaba MPa 164 na MPa 256, 5% na 6% hejuru ya PA66-1 #. Imbaraga zingaruka zagaragaye nimbaraga zitagaragara za PA66-1 # zombi ziri hejuru, zikaba 10.5kJ / m2 na 66.9 kJ / m2, 3% na 21% hejuru ya PA66-1 #. Muri rusange imiterere yubukanishi bwibikoresho byombi bisize hamwe na fosifore itukura ni ndende, ishobora kuzuza ibisabwa mubikorwa bitandukanye.

3. Kugaragara no kunuka

Birashobora kugaragara uhereye kumiterere yubwoko bubiri bwatewe inshinge zometseho fosifore itukura ko flame retardant yongereye PA66 (PA66-1 #) yateguwe na melamine resin yashizwemo na fosifore itukura ifite ubuso bworoshye, ibara ryiza kandi nta fibre ireremba kuri hejuru. Ibara ryubuso bwa flame retardant yashimangiye PA66 (PA66-2 #) yateguwe na fenolike resin yashizwemo na fosifore itukura ntabwo yari imwe kandi hariho fibre nyinshi zireremba. Ibi biterwa cyane cyane nuko melamine resin ubwayo ari ifu nziza cyane kandi yoroshye, nkigice cyo gutwikira cyatangijwe, bizagira uruhare mu gusiga amavuta muri sisitemu yose yibikoresho, bityo ibintu bigaragara neza, nta fibre igaragara ireremba.

Ubwoko bubiri bwa fosifore itukura yometse kuri flame retardant yongerewe imbaraga za PA66 zashyizwe kuri 80 ℃ mumasaha 2, kandi umunuko wazo warageragejwe. Pa66-1 # ibikoresho bifite impumuro igaragara numunuko ukomeye. Pa66-2 # ifite umunuko muto kandi nta mpumuro igaragara. Ibi biterwa ahanini nuburyo bwo gutwikira polymerisiyonike, amine yatwikiriwe resin molekile ntoya ntabwo byoroshye kuvanaho isuku, kandi impumuro yibintu bya amine ubwayo nini.

4. Kwinjiza amazi

Kuberako PA66 irimo amine na karubone, biroroshye gukora imigozi ya hydrogène hamwe na molekile zamazi, biroroshye rero gufata amazi iyo ikoreshejwe, bikavamo ingaruka za plastike, bikavamo kwaguka kwinshi mubintu, kugabanuka gukabije, no kunyerera kugaragara mubikorwa bya guhangayika.

Ingaruka za fosifore itukura yometse ku binyabuzima bitandukanya fosifore itukura ku iyinjizwa ry’amazi y’ibikoresho byakozwe mu gupima amazi yinjira mu bikoresho. Birashobora kugaragara ko kwinjiza amazi yibikoresho byombi byiyongera hamwe no kwiyongera kwigihe. Amazi yambere yo kwinjiza PA66-1 # na PA62-2 # arasa, ariko hamwe no kwiyongera kwigihe cyo gufata amazi, kwinjiza amazi yibikoresho bitandukanye biragaragara ko bitandukanye. Muri byo, fenolike resin yometse kuri fosifore itukura nylon (PA66-2 #) ifite umuvuduko muke wo kwinjiza amazi angana na 5.8% nyuma yiminsi 90, mugihe melamine resin yatwikiriye fosifore yumuriro utukura nylon (PA66-1 #) ifite amazi maremare gato. igipimo cyo kwinjiza 6.4% nyuma yiminsi 90. Ibi biterwa ahanini nuko resin ya fenolike ubwayo igipimo cyo kwinjiza amazi kiri hasi, kandi resin ya melamine irasa cyane no gufata amazi, kurwanya hydrolysis birakennye.

5. Kurwanya ruswa

Uhereye kuburugero rwambaye ubusa no kuri fosifore itukura itwikiriwe na flasphorus flame retardant ishimangirwa ibikoresho bya nylon byo kwangirika kwicyuma mubishusho birashobora kubona, kutifatanya, icyitegererezo cyubusa cyahinduwe na nylon cyuma cyangiritse ni gito, hariho umwuka muke hamwe numwuka wamazi watewe na ruswa. akamenyetso, PA66-1 # yo kwangirika kwicyuma ni cyiza ugereranije, icyuma cyo hejuru cyicyuma ni cyiza, ibice bike bifite ibintu byo kwangirika, Icyuma cyangirika cya PA66-2 # nicyo gikomeye cyane, kandi hejuru yurupapuro rwicyuma cyanduye rwose. , mugihe ubuso bwurupapuro rwumuringa bwangirika kandi bigahinduka ibara bigaragara. Ibi birerekana ko kwangirika kwa melamine resin yatwikiriwe na fosifori itukura ya flame retardant nylon iri munsi yubwa fenolike resin yatwikiriwe na fosifori yumuriro utukura nylon.

Mu gusoza, ubwoko bubiri bwibikoresho bya flame-retardant byongerewe ibikoresho bya PA66 byateguwe mugusiga fosifore itukura hamwe na melamine resin na fenolike. Ubwoko bubiri bwibikoresho bya flame-retardant birashobora kugera kuri 1.6mmV-0, birashobora kunyura 775 ℃ glow-wire yo gutwika, naho CTI ikagera kuri 450V.

Imbaraga zingana nimbaraga za PA66 zongerewe imbaraga na melamine isize fosifore itukura, mugihe umutungo wa PA66 wari mwiza na fosifori itukura ya fenolike. Byongeye kandi, impumuro ya resinike ya fenolike yashizwemo na fosifori yumuriro utukura retardant yongerewe PA66 ntiyari munsi y’ibikoresho bya melamine, kandi igipimo cy’amazi cyari gito. Melamine resin isize hamwe na fosifori itukura ya flame retardant yongerera isura PA66 hamwe no kwangirika kwicyuma.

Reba: Kwiga kumiterere ya flame retardant ya PA66 yashizwemo na fosifore itukura, ibikoresho bya interineti.